java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/llreve/fib_safe.c-1.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:00:22,851 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:00:22,853 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:00:22,867 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:00:22,867 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:00:22,868 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:00:22,869 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:00:22,870 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:00:22,872 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:00:22,873 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:00:22,874 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:00:22,875 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:00:22,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:00:22,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:00:22,877 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:00:22,881 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:00:22,883 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:00:22,896 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:00:22,897 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:00:22,898 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:00:22,899 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:00:22,901 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:00:22,901 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:00:22,902 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:00:22,902 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:00:22,903 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:00:22,909 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:00:22,909 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:00:22,910 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:00:22,910 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:00:22,911 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:00:22,912 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:00:22,912 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:00:22,912 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:00:22,913 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:00:22,913 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:00:22,929 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:00:22,929 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:00:22,929 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:00:22,929 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:00:22,930 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:00:22,931 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:00:22,931 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:00:22,931 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:00:22,931 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:00:22,931 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:00:22,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:00:22,932 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:00:22,932 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:00:22,932 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:00:22,932 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:00:22,933 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:00:22,933 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:00:22,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:00:22,933 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:00:22,934 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:00:22,935 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:00:22,968 INFO ]: Repository-Root is: /tmp [2018-06-22 11:00:22,980 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:00:22,984 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:00:22,985 INFO ]: Initializing SmtParser... [2018-06-22 11:00:22,985 INFO ]: SmtParser initialized [2018-06-22 11:00:22,986 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/llreve/fib_safe.c-1.smt2 [2018-06-22 11:00:22,987 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 11:00:23,085 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/llreve/fib_safe.c-1.smt2 unknown [2018-06-22 11:00:23,262 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/llreve/fib_safe.c-1.smt2 [2018-06-22 11:00:23,267 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:00:23,272 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:00:23,273 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:00:23,273 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:00:23,273 INFO ]: ChcToBoogie initialized [2018-06-22 11:00:23,276 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:00:23" (1/1) ... [2018-06-22 11:00:23,321 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23 Unit [2018-06-22 11:00:23,321 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:00:23,322 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:00:23,322 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:00:23,322 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:00:23,338 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23" (1/1) ... [2018-06-22 11:00:23,338 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23" (1/1) ... [2018-06-22 11:00:23,344 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23" (1/1) ... [2018-06-22 11:00:23,345 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23" (1/1) ... [2018-06-22 11:00:23,347 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23" (1/1) ... [2018-06-22 11:00:23,348 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23" (1/1) ... [2018-06-22 11:00:23,349 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23" (1/1) ... [2018-06-22 11:00:23,350 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:00:23,351 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:00:23,351 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:00:23,351 INFO ]: RCFGBuilder initialized [2018-06-22 11:00:23,351 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:00:23,370 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:00:23,370 INFO ]: Found specification of procedure False [2018-06-22 11:00:23,370 INFO ]: Found implementation of procedure False [2018-06-22 11:00:23,370 INFO ]: Specification and implementation of procedure inv_main31 given in one single declaration [2018-06-22 11:00:23,370 INFO ]: Found specification of procedure inv_main31 [2018-06-22 11:00:23,370 INFO ]: Found implementation of procedure inv_main31 [2018-06-22 11:00:23,370 INFO ]: Specification and implementation of procedure inv_main23 given in one single declaration [2018-06-22 11:00:23,370 INFO ]: Found specification of procedure inv_main23 [2018-06-22 11:00:23,370 INFO ]: Found implementation of procedure inv_main23 [2018-06-22 11:00:23,370 INFO ]: Specification and implementation of procedure inv_main9 given in one single declaration [2018-06-22 11:00:23,370 INFO ]: Found specification of procedure inv_main9 [2018-06-22 11:00:23,370 INFO ]: Found implementation of procedure inv_main9 [2018-06-22 11:00:23,370 INFO ]: Specification and implementation of procedure inv_main3 given in one single declaration [2018-06-22 11:00:23,370 INFO ]: Found specification of procedure inv_main3 [2018-06-22 11:00:23,370 INFO ]: Found implementation of procedure inv_main3 [2018-06-22 11:00:23,370 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:00:23,370 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:00:23,370 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 11:00:23,598 INFO ]: Using library mode [2018-06-22 11:00:23,598 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:00:23 BoogieIcfgContainer [2018-06-22 11:00:23,599 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:00:23,607 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:00:23,607 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:00:23,610 INFO ]: TraceAbstraction initialized [2018-06-22 11:00:23,611 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:00:23" (1/3) ... [2018-06-22 11:00:23,612 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65448f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:00:23, skipping insertion in model container [2018-06-22 11:00:23,612 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:00:23" (2/3) ... [2018-06-22 11:00:23,612 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65448f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:00:23, skipping insertion in model container [2018-06-22 11:00:23,612 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:00:23" (3/3) ... [2018-06-22 11:00:23,614 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:00:23,630 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:00:23,637 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:00:23,675 INFO ]: Using default assertion order modulation [2018-06-22 11:00:23,675 INFO ]: Interprodecural is true [2018-06-22 11:00:23,675 INFO ]: Hoare is false [2018-06-22 11:00:23,675 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:00:23,675 INFO ]: Backedges is TWOTRACK [2018-06-22 11:00:23,676 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:00:23,676 INFO ]: Difference is false [2018-06-22 11:00:23,676 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:00:23,676 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:00:23,693 INFO ]: Start isEmpty. Operand 26 states. [2018-06-22 11:00:23,704 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:00:23,704 INFO ]: Found error trace [2018-06-22 11:00:23,705 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:00:23,705 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:00:23,708 INFO ]: Analyzing trace with hash -1901944105, now seen corresponding path program 1 times [2018-06-22 11:00:23,709 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:00:23,710 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:00:23,747 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:00:23,747 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:00:23,747 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:00:23,784 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:00:23,958 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:00:23,960 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:00:23,960 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:00:23,962 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:00:23,974 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:00:23,974 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:00:23,976 INFO ]: Start difference. First operand 26 states. Second operand 7 states. [2018-06-22 11:00:24,146 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:00:24,146 INFO ]: Finished difference Result 32 states and 37 transitions. [2018-06-22 11:00:24,147 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:00:24,148 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 11:00:24,148 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:00:24,157 INFO ]: With dead ends: 32 [2018-06-22 11:00:24,157 INFO ]: Without dead ends: 30 [2018-06-22 11:00:24,159 INFO ]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:00:24,173 INFO ]: Start minimizeSevpa. Operand 30 states. [2018-06-22 11:00:24,195 INFO ]: Finished minimizeSevpa. Reduced states from 30 to 28. [2018-06-22 11:00:24,196 INFO ]: Start removeUnreachable. Operand 28 states. [2018-06-22 11:00:24,198 INFO ]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2018-06-22 11:00:24,200 INFO ]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 21 [2018-06-22 11:00:24,200 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:00:24,200 INFO ]: Abstraction has 28 states and 32 transitions. [2018-06-22 11:00:24,200 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:00:24,200 INFO ]: Start isEmpty. Operand 28 states and 32 transitions. [2018-06-22 11:00:24,202 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 11:00:24,202 INFO ]: Found error trace [2018-06-22 11:00:24,202 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:00:24,202 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:00:24,202 INFO ]: Analyzing trace with hash -455815271, now seen corresponding path program 1 times [2018-06-22 11:00:24,202 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:00:24,202 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:00:24,203 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:00:24,203 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:00:24,203 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:00:24,232 INFO ]: Conjunction of SSA is sat [2018-06-22 11:00:24,237 INFO ]: Counterexample might be feasible [2018-06-22 11:00:24,258 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:00:24 BoogieIcfgContainer [2018-06-22 11:00:24,258 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:00:24,259 INFO ]: Toolchain (without parser) took 991.21 ms. Allocated memory is still 308.8 MB. Free memory was 265.2 MB in the beginning and 225.1 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:00:24,260 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:00:24,260 INFO ]: ChcToBoogie took 48.98 ms. Allocated memory is still 308.8 MB. Free memory was 264.2 MB in the beginning and 262.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:00:24,261 INFO ]: Boogie Preprocessor took 28.16 ms. Allocated memory is still 308.8 MB. Free memory was 262.2 MB in the beginning and 261.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:00:24,261 INFO ]: RCFGBuilder took 248.01 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 253.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:00:24,262 INFO ]: TraceAbstraction took 650.47 ms. Allocated memory is still 308.8 MB. Free memory was 252.2 MB in the beginning and 225.1 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:00:24,265 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 48.98 ms. Allocated memory is still 308.8 MB. Free memory was 264.2 MB in the beginning and 262.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 28.16 ms. Allocated memory is still 308.8 MB. Free memory was 262.2 MB in the beginning and 261.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 248.01 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 253.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 650.47 ms. Allocated memory is still 308.8 MB. Free memory was 252.2 MB in the beginning and 225.1 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call False(); [L0] assume !(hbv_False_1_Int == hbv_False_2_Int); [L0] CALL call inv_main31(hbv_False_3_Int, hbv_False_1_Int, hbv_False_2_Int); [L0] assume !(!(hbv_inv_main31_1_Int == 0) && 0 <= hbv_inv_main31_2_Int + -1); [L0] CALL call inv_main23(hhv_inv_main31_0_Int, hhv_inv_main31_1_Int, hbv_inv_main31_2_Int, hbv_inv_main31_3_Int, hhv_inv_main31_2_Int, hbv_inv_main31_4_Int); [L0] assume (((hhv_inv_main23_5_Int == hbv_inv_main23_2_Int + hhv_inv_main23_3_Int && !(hbv_inv_main23_1_Int == 0)) && hhv_inv_main23_4_Int == hbv_inv_main23_2_Int + hhv_inv_main23_3_Int) && 0 <= hbv_inv_main23_3_Int + -1) && hhv_inv_main23_2_Int == hbv_inv_main23_3_Int + -1; [L0] CALL call inv_main23(hhv_inv_main23_0_Int, hhv_inv_main23_1_Int, hbv_inv_main23_3_Int, hbv_inv_main23_2_Int, hhv_inv_main23_3_Int, hbv_inv_main23_4_Int); [L0] assume (((hhv_inv_main23_5_Int == 0 && hhv_inv_main23_2_Int == hhv_inv_main23_0_Int) && hhv_inv_main23_3_Int == 1) && !(!(hbv_inv_main23_1_Int == 0) && 0 <= hbv_inv_main23_2_Int + -1)) && hhv_inv_main23_4_Int == 1; [L0] CALL call inv_main9(hhv_inv_main23_0_Int, hbv_inv_main23_2_Int, hbv_inv_main23_3_Int, hhv_inv_main23_1_Int, hbv_inv_main23_4_Int); [L0] assume ((hhv_inv_main9_1_Int == hhv_inv_main9_0_Int && hhv_inv_main9_3_Int == 1) && hhv_inv_main9_4_Int == 0) && hhv_inv_main9_2_Int == 0; [L0] CALL call inv_main3(hhv_inv_main9_0_Int); [L0] assume true; [L0] RET call inv_main3(hhv_inv_main9_0_Int); [L0] RET call inv_main9(hhv_inv_main23_0_Int, hbv_inv_main23_2_Int, hbv_inv_main23_3_Int, hhv_inv_main23_1_Int, hbv_inv_main23_4_Int); [L0] RET call inv_main23(hhv_inv_main23_0_Int, hhv_inv_main23_1_Int, hbv_inv_main23_3_Int, hbv_inv_main23_2_Int, hhv_inv_main23_3_Int, hbv_inv_main23_4_Int); [L0] RET call inv_main23(hhv_inv_main31_0_Int, hhv_inv_main31_1_Int, hbv_inv_main31_2_Int, hbv_inv_main31_3_Int, hhv_inv_main31_2_Int, hbv_inv_main31_4_Int); [L0] RET call inv_main31(hbv_False_3_Int, hbv_False_1_Int, hbv_False_2_Int); [L0] RET call False(); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 26 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 3 SDslu, 100 SDs, 0 SdLazy, 34 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fib_safe.c-1.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-00-24-282.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fib_safe.c-1.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-00-24-282.csv Received shutdown request...